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SigmasTek  |  SKU: BW-1575

Best Power LI 2.5KVA Compatible Replacement Battery Set 74.17 lb

24% off
New arrival
Sale price $347.99 USD Regular price $454.99
Shipping calculated at checkout.
Package contains 3 batteries for Best Power LI 2.5KVA
AGM sealed battery technology for durability and performance
Guaranteed compatibility with original Best Power UPS units
UL certified for safety and quality
1-year warranty included
In stock

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Battery Care Tips

🔹 Getting Started

Charge your new battery fully before you use it for the first time. Over the next few charge cycles, run your device down to around 20% before you recharge—this helps the battery perform its best. After that, charge whenever you need to.

🔹 Keep It Healthy

Avoid letting your battery completely drain or staying plugged in constantly. Both extremes wear it out faster. Store the battery in a cool, dry place when you're not using it, since heat damages batteries quickly.

Delivery and Shipping

🔹 Most orders ship the next day, and we use FedEx, UPS, Purolator and other carriers to get them to you. Lithium batteries have to ship by ground only, not air or USPS. Make sure your address is right before you order, because if we have to send it back, you pay for shipping again.

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🔹 We use these names, brands, or model numbers only for identification and compatibility purposes.


Volts & Amps

12 Volts | 35 AH

Terminal Type

Nut & Bolt

Best Power LI 2.5KVA Replacement UPS Battery (Compatible with Best Power LI 2.5KVA)

Replace the batteries in your Best Power LI 2.5KVA with this reliable replacement UPS battery pack. This purchase includes three 12V 35AH AGM sealed batteries with NB terminals, designed to provide dependable backup power for your Best Power UPS. These UL certified batteries are a high-performance UPS battery option that meets or exceeds original manufacturer specifications for safe, consistent operation.

Key Specifications

  • Package contains: 3 batteries
  • Chemistry: SLA (Sealed Lead Acid)
  • Technology: AGM (Absorption Glass Mat)
  • Compatibility: Guaranteed compatibility with original battery set (Best Power LI 2.5KVA)
  • Warranty: 1-year Warranty
  • Volts: 12 V
  • Amp Hours: 35 AH
  • Weight: 74.1 Lbs (total package weight as listed)
  • Length: 7.72 In
  • Width: 5.14 In
  • Height: 6.14 In
  • Terminal: NB (Nut & Bolt)
  • Certification: UL (Underwriters Laboratories) certified
  • Brand / Spec Sheet: SigmasTek (replacement batteries sourced by ReplaceUPSBattery.com)
  • Shipping: UPS Ground and USPS; we ship in 1 business day for all in-stock items

Benefits

  • Durability: AGM sealed construction reduces maintenance and prevents leakage—built to withstand installation in UPS cabinets and enclosed systems.
  • Long life: These long-lasting battery units are designed to meet or exceed OEM performance, helping extend the usable life of your Best Power LI 2.5KVA and decreasing replacement frequency.
  • High performance: Reliable 12V 35AH output ensures stable backup for servers, networking equipment, and essential electronics during power interruptions.
  • Safety and quality: UL certification verifies adherence to recognized safety standards for stationary UPS applications.
  • Straightforward installation: NB terminal style and matching dimensions let you reuse original cables and hardware and install the batteries in the same configuration.
  • Applications: Ideal as a replacement UPS battery set for Best Power LI 2.5KVA systems and suitable for emergency power, telecom cabinets, data centers, and backup for tools and light equipment.
  • Quick shipping: In-stock items ship within one business day so you can restore backup power promptly.

Ready to secure reliable backup for your Best Power LI 2.5KVA? Order this 3-pack of 12V 35AH AGM replacement UPS batteries now. For assistance or questions, reach our customer service via email, chat, or call toll free at (800) 657-1303.

Technical Specifications

Voltage12 Volts
Amp Hours35 AH
Terminal TypeNut & Bolt
Length (in.)7.72
Width (in.)5.14
Height (in.)6.22
Weight (lb.)74.1

Product Highlights

  • Brand Replacement : Best Power
  • Manufacturer: SigmasTek
  • Product Type: UPS Batteries
  • Warranty: 12 Months
  • Bulk Orders: sales@batteryweb.com

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